A grid trash rack frame for irrigation channels

By designing cleaning and flow regulation components for the grid-type debris-blocking frame in irrigation channels, the problem of debris blockage was solved, achieving safe and efficient debris removal and water flow regulation, while reducing costs and labor intensity.

CN224678645UActive Publication Date: 2026-08-25HUBEI WATER CONSERVANCY & HYDROPOWER RES INST
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Patent Information

Application Number
CN202521869494.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-01
Publication Date
2026-08-25
Estimated Expiration
2035-09-01

AI Technical Summary

Technical Problem

Trash grates in irrigation channels are prone to clogging by impurities after prolonged use. Self-cleaning grates require an electric system, which is costly, while non-cleaning grates require manual cleaning, which is time-consuming, labor-intensive, and dangerous.

Method used

A screen frame for cleaning debris in irrigation channels was designed, comprising a cleaning component and a flow regulation component. The screen uses a manually rotated turntable to drive a sprocket and chain to clean debris from the bank, and regulates the water flow through a regulating plate to avoid manual intervention in the water.

Benefits of technology

It enables the cleaning of impurities without the need for water, reducing safety hazards and costs, while also allowing for adjustment of water flow as needed, thus saving water resources.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of trash rack, disclose a kind of grid trash frame for irrigation channel, including outer frame, the frame further includes: a plurality of fixed in the outer frame front side and mutually parallel grid strip;Cleaning assembly, the cleaning assembly is located in the outer frame, and includes the trash rake that can reciprocate along the length direction of the grid strip;The cleaning assembly includes two closed loop chains fixedly connected on the trash rake, and the upper and lower two groups of sprocket for driving the chain circulation movement and the rotating rod for driving the sprocket rotation respectively arranged on the upper and lower ends of the outer frame. In the utility model, by rotating the rotating disc, the torque is increased through speed reducer, the rotating rod is rotated, and is matched with sprocket and chain, so that two connecting pieces move synchronously, so that the fixed plate drives the tooth on the grid strip to move, so as to realize the impurity attached on the grid strip is fished up, and the impurity can be cleaned on the shore, without diving, avoid the emergence of security risk, while saving cost.
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Description

Technical Field

[0001] This utility model relates to the field of trash racks, and more particularly to a trash rack frame for irrigation channels. Background Technology

[0002] Irrigation canals are artificial waterways used to guide and distribute water to irrigate farmland. They are divided into main canals and branch canals, which can effectively transport water from rivers, lakes or reservoirs to various crop growing areas. There are two types of irrigation canals: open and closed. Open canals are suitable for large areas of farmland, while closed pipes can reduce water loss. A reasonable irrigation canal design can improve the utilization rate of water resources, promote crop growth, and play an important role in preventing and controlling drought and flood disasters.

[0003] A trash rack is a water management facility primarily used to intercept floating debris and other contaminants in water, preventing them from entering water sources or downstream bodies. It is installed at the entrances of rivers, lakes, and irrigation canals to reduce water pollution and maintain water quality. Trash racks come in various structures, including metal mesh and fences, and can effectively capture debris such as leaves and plastics, facilitating subsequent cleanup. By installing trash racks, not only can the aquatic ecosystem be protected, but water resource utilization efficiency can also be improved, promoting sustainable development.

[0004] Currently, trash racks are divided into two types: self-cleaning and non-cleaning. To prevent impurities from clogging the gaps of the trash rack and affecting the water flow rate over a long period of time, the self-cleaning type requires a separate power system. However, irrigation channels are set up in the field, and the cost of a separate power system is high. The non-cleaning type requires manual cleaning by people going into the water, which is not only time-consuming and laborious but also dangerous. Therefore, a trash rack frame for irrigation channels is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a grid screen frame for irrigation channels. It aims to improve the problem that in order to prevent impurities from clogging the gaps of the grid and affecting the water flow rate over a long period of time, the self-cleaning type requires a separate power system, but irrigation channels are set up in the field, and the cost of a separate power system is high. The non-cleaning type requires manual cleaning by going into the water, which is not only time-consuming and laborious, but also has certain dangers.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a grid-type debris-blocking frame for irrigation channels, comprising an outer frame, the frame further comprising: Multiple grid strips fixed to the front side of the outer frame and parallel to each other; A cleaning assembly, which is disposed within the outer frame and includes a cleaning rake capable of reciprocating along the length of the grid strip; The cleaning assembly includes two closed-loop chains fixedly connected to the cleaning rake, and two sets of sprockets respectively located at the upper and lower ends of the outer frame for driving the chains to circulate, and a rotating rod for driving the sprockets to rotate.

[0007] Preferably, the cleaning assembly further includes a reducer fixed to one side of the outer frame and a turntable connected to the input end of the reducer; the output end of the reducer is connected to the rotating rod of the upper sprocket so as to drive the cleaning rake to move by rotating the turntable.

[0008] Preferably, the cleaning rake includes a fixed plate and a plurality of ferrules fixed to the front side of the fixed plate and a connector fixed between the rear side of the fixed plate and the front side of the chain; the tips of the ferrules can be inserted into the gap between two adjacent grid bars, and the front side of the fixed plate is slidably connected to the rear side of the grid bar.

[0009] Preferably, it further includes a flow regulating component located on the rear side of the outer frame; the flow regulating component includes a plurality of regulating plates that can rotate about their respective vertical axes.

[0010] Preferably, the flow regulating assembly further includes a plurality of rotating shafts respectively fixed to each of the regulating plates, a plurality of connecting rods respectively connected to each of the rotating shafts, and a linkage rod that is rotatably connected to all of the connecting rods.

[0011] Preferably, the top of the outer frame is provided with multiple positioning slots; the linkage rod is provided with a pluggable pin, which can be selectively inserted into any of the positioning slots.

[0012] Preferably, a handle is also fixedly connected to the linkage rod to facilitate the operator's application of force.

[0013] Preferably, the rotating rod is rotatably connected inside the outer frame.

[0014] This utility model has the following beneficial effects: 1. In this utility model, by manually rotating the turntable, the speed is reduced and the torque is increased by the reducer, so that the upper rotating rod rotates. In conjunction with the sprockets and chains on both sides, the two connecting parts move synchronously, so that the fixed plate drives the toothed part to move on the grid bar. This achieves the removal of impurities attached to the grid bar. The impurities can be cleaned off on the shore without going into the water, avoiding safety hazards and saving costs.

[0015] 2. In this utility model, by using a handle to push and pull the linkage rod, the linkage rod drives the rotating shaft to rotate, thereby changing the deflection direction of the adjustment plate. The pin passes through the linkage rod and is inserted into the positioning groove, which realizes the ability to quickly and manually adjust the flow of the channel according to the local drought and flood conditions, thus saving water resources. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a grid-type debris-blocking frame for irrigation channels proposed in this utility model; Figure 2 This is a schematic diagram of the outer frame of a grid debris barrier frame for irrigation channels proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the structure of the adjusting plate of the grid debris-blocking frame for irrigation channels proposed in this utility model; Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0017] Legend: 1. Outer frame; 2. Grille strip; 3. Positioning groove; 4. Rotating rod; 5. Sprocket; 6. Chain; 7. Fixing plate; 8. Gear; 9. Reducer; 10. Turntable; 11. Rotating shaft; 12. Adjusting plate; 13. Connecting rod; 14. Linkage rod; 15. Pin; 16. Handle; 17. Connecting piece. Detailed Implementation

[0018] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0019] Reference Figure 1 - Figure 3 One embodiment of this utility model provides: a grid-type debris-blocking frame for irrigation channels, including an outer frame 1, the frame further including: Multiple grid strips 2 are fixed to the front side of the outer frame 1 and are parallel to each other. The outer frame 1 and the grid strips 2 work together to form the entire debris barrier grid. The cleaning component is located inside the outer frame 1 and includes a cleaning rake that can reciprocate along the length of the grid bar 2. The cleaning rake is used to convey impurities attached to the grid bar 2 upward. The cleaning assembly includes two closed-loop chains 6 fixedly connected to the cleaning rake, and two sets of sprockets 5 respectively located at the upper and lower ends of the outer frame 1 for driving the chains 6 in cyclical motion, and rotating rods 4 for driving the sprockets 5 to rotate. The cleaning assembly also includes a reducer 9 fixed to one side of the outer frame 1 and a turntable 10 connected to the input end of the reducer 9; the output end of the reducer 9 is connected to the rotating rod 4 of the upper set of sprockets 5 for transmission, so as to drive the cleaning rake to move by rotating the turntable 10. The chains 6 are used to drive the connecting piece 17 to move, the sprockets 5 are used to drive the upper and lower rotating rods 4 to rotate synchronously, and the reducer 9 is used to increase the torque. To make manual rotation of the turntable 10 easier, the cleaning rake includes a fixed plate 7 and multiple teeth 8 fixed to the front side of the fixed plate 7 and a connector 17 fixed between the rear side of the fixed plate 7 and the front side of the chain 6. The tips of the teeth 8 can be inserted into the gap between two adjacent grid bars 2, and the front side of the fixed plate 7 is slidably connected to the rear side of the grid bar 2. The fixed plate 7 is used to drive the teeth 8 to move synchronously. The teeth 8 are used to clean the impurities attached to the grid bar 2. The connector 17 is used to make the chain 6 drive the fixed plate 7 to move up and down. The rotating rod 4 is rotatably connected inside the outer frame 1 to keep the linkage rod 14 stable.

[0020] Reference Figure 1 , Figure 4 , Figure 5 It also includes a flow regulating assembly located on the rear side of the outer frame 1; the flow regulating assembly includes multiple regulating plates 12 that can rotate around their respective vertical axes. The regulating plates 12 are used to control the water flow. The flow regulating assembly also includes multiple rotating shafts 11 that are respectively fixed to each regulating plate 12, multiple connecting rods 13 that are respectively connected to each rotating shaft 11, and a linkage rod 14 that is rotatably connected to all connecting rods 13. The rotating shafts 11 are used to drive the regulating plates 12 to rotate, the connecting rods 13 are used to drive the regulating plates 12 to rotate, and the linkage rod 14 is used to drive all connecting rods 13 to deflect simultaneously. Multiple positioning slots 3 are provided on the top of the outer frame 1; a pluggable pin 15 is provided on the linkage rod 14. The pin 15 can be selectively inserted into any positioning slot 3. The positioning slot 3 is used to limit the angle of deflection of the regulating plate 12, and the pin 15 is used to fix the angle of the regulating plate 12. A handle 16 is also fixedly connected to the linkage rod 14 to facilitate the operator to apply force. The handle 16 is used to facilitate the manual pushing and pulling of the linkage rod 14.

[0021] When using this debris-blocking screen to intercept solid impurities in irrigation channels, the equally spaced screen bars 2 intercept the solid impurities upstream of the channel, preventing them from drifting into the fields. After a period of use, to prevent impurities from accumulating and causing blockages that affect water flow, the impurities need to be cleaned promptly. By manually rotating the turntable 10, the reducer 9 increases the torque, causing the rotating rod 4 to start rotating. This, in conjunction with the two sets of sprockets 5, drives the chain 6 to rotate, causing the connecting piece 17 to move the fixing plate 7 upward. At this time, the pick teeth 8 will lift the impurities attached to the screen bars 2 upward, away from the water surface. Then, the impurities on the pick teeth 8 can be removed using auxiliary tools such as forks. No manual intervention in the water is required, avoiding potential safety hazards. After cleaning all hidden dangers, rotate the turntable 10 in the opposite direction to lower the toothed 8 to the bottom, thus cleaning the impurities. When there is abundant rainfall in the area, the water flow in the channel can be reduced to save water resources. By pulling the pin 15 upward, the pin 15 is disengaged from the positioning groove 3. At this time, the linkage rod 14 is unlocked. By pushing and pulling the linkage rod 14 with the handle 16, the connecting rod 13 deflects and drives the rotating shaft 11 to rotate, causing the adjusting plate 12 to deflect synchronously, thereby reducing the gap between the two adjusting plates 12, increasing the resistance, and reducing the water flow. Then, the pin 15 is reinserted into the corresponding positioning groove 3 to complete the adjustment. The operation is convenient and labor-saving. When the adjusting plate 12 is completely parallel to the water flow direction, the water flow rate is at its maximum.

Claims

1. A grid-type debris-blocking frame for irrigation channels, comprising an outer frame (1), characterized in that, The framework also includes: Multiple grid strips (2) fixed to the front side of the outer frame (1) and parallel to each other; A cleaning component is disposed within the outer frame (1) and includes a cleaning rake capable of reciprocating along the length of the grid strip (2); The cleaning assembly includes two closed-loop chains (6) fixedly connected to the cleaning rake, and two sets of sprockets (5) respectively located at the upper and lower ends of the outer frame (1) for driving the chains (6) to circulate, and a rotating rod (4) for driving the sprockets (5) to rotate.

2. The grid-type debris-blocking frame for irrigation channels according to claim 1, characterized in that: The cleaning assembly also includes a speed reducer (9) fixed to one side of the outer frame (1) and a turntable (10) connected to the input end of the speed reducer (9); the output end of the speed reducer (9) is connected to the rotating rod (4) of the upper sprocket (5) so as to drive the cleaning rake to move by rotating the turntable (10).

3. A grid-type debris-blocking frame for irrigation channels according to claim 2, characterized in that: The cleaning rake includes a fixed plate (7) and a plurality of hook teeth (8) fixed to the front side of the fixed plate (7) and a connector (17) fixed between the rear side of the fixed plate (7) and the front side of the chain (6); the tips of the hook teeth (8) can be inserted into the gap between two adjacent grid bars (2), and the front side of the fixed plate (7) is slidably connected to the rear side of the grid bar (2).

4. A grid-type debris-blocking frame for irrigation channels according to claim 1, characterized in that: It also includes a flow regulating assembly located on the rear side of the outer frame (1); the flow regulating assembly includes a plurality of regulating plates (12) that can rotate about their respective vertical axes.

5. A grid screen frame for irrigation channels according to claim 4, characterized in that: The flow regulating assembly also includes a plurality of rotating shafts (11) respectively fixed to each of the regulating plates (12), a plurality of connecting rods (13) respectively connected to each of the rotating shafts (11), and a linkage rod (14) rotatably connected to all of the connecting rods (13).

6. A grid-type debris-blocking frame for irrigation channels according to claim 5, characterized in that: The top of the outer frame (1) is provided with multiple positioning slots (3); the linkage rod (14) is provided with a pluggable pin (15), which can be selectively inserted into any of the positioning slots (3).

7. A grid-type debris-blocking frame for irrigation channels according to claim 6, characterized in that: A handle (16) is also fixedly connected to the linkage rod (14) to facilitate the operator to apply force.

8. A grid screen frame for wastewater interception in irrigation channels according to claim 1, characterized in that: The rotating rod (4) is rotatably connected inside the outer frame (1).